How to check package history (not git)?

[aur]

Hi everyone,

is there a way to see the history of a package (as in, all the package 
changes, not just the git log)? I came across packages that have been 
updated this year (according to their page in the AUR web interface) but 
have not had changes to their git in two years. I suspect either a) 
there are changes that are not visible (i.e. maintainer changes) or b) 
the package was a target in the AUR attacks and the malicious commits 
have been removed, but the "updated" date stayed. To name a specific 
package where I see this: xsp.

The package and its maintainer fennekuiper might also be worth a check. 
They registered three days before adopting a dozen packages, then became 
inactive.